Developing-tank.



L. N. GHAPIN.

DEVELOPING TANK.

APPLICATION FILED APB..26, 1909.

Patented'May 24, 1910.

3 SHEETS-SHEET 1.

H w w I APPLICATION fILED APR.26,1909. 958,993.

Patented May 24, 1910.

3 SHEETS-BHEET 3.

'vide a "developing-tank) wherein two 1 films opingphoto These, andother objects which 'pea'r as the description proceeds, I accomii Louis or E YORK; if

1" nEv'EnogING-TAnx.

=- -5 Application .filed ihpril :26,

have invented ,certainnew and useful 1m.-

ovement in Developing-Tanks, of which the'lfollowing isia" fu'll clear, and exact sl clfil i imm" I 1 ".Mjinventwn" r'elatesto, tanks for develraphs and particularly to a deeloplngta'n (wherein a. roll of-flexible films having a large number of latent images may be'placed' for developing, fixing, washing, etc, and'my invention-has-forits object to produce a developing "tank wherein {such film'strniy not only be developed. but: also be washed, etc, and beprepared :for printing "without any danger of' exposure toilight and without fear 'ofi-t'he fihn being touched b y t he backing.

'*-". \nothe1objcct of my inventioni's to pro duce' al'developing' tank -wherein such-'film may be placedffor developing 'without mequiring "any support outside of that furnished""by"tl1e parts of tl1e tank;'to Wit,

without the supplemental, "flexible, waterproof s'heetfrequently uscdffor such purpose.

Another object of my invention is to promay be developed, etc, sinnilt aneo1'1sly, and

wherein "they may b'e"simultaneo usly inserted 'aJndWvit-hdrawnwith but little more trouble. than one film would causes j will applish by the apparatus hereinafter =described and illustrated in the accoin 'aany'ing drawings 'wherein Figure 1 ma plain view of. my developing tank. Fig. 2 is a vertical,-longitudinal sec- 2 of'Fig. 1. Fig. 3 is an. I

tion on the line 2 enlarged end view, partly in section, with the front of the box removed andafilm 1n place. Figfi c is a. detail illustrating how the reels wind thcfilm. Fig. 5 is a sectional detail of the inner reels, illustrating sundry details of construction. Fig. 6 is a perspective ViOW of a lock employed in connection with the outer reel. Fig. 7 is a side view of the film-carrier, sho'winglhe-fluid openings. Fig. Sis an innenend view-of one ot'the disks having amodified forr'n of reel; Fig. 9 a sideview of the same, partly broken I j Specifieati onof Letters ent ty sem ste 190's. steam. 492,195

view 'thereofi-rmid Rigs. :1 2 and '13: are side and -end.v1e\\'*s of .another dIlOdlfiQCl form.

which fits snugly so as :to :exclude light, and with a curvcd bottom-3,:Whi0l1 extends from side to sidelofithe' box and has its concave side upward soeasrtos-lie in proximity to the film-carrier 4:; in order ithati-only theaniount away. Fi -5104s a'atlewl'isiniilar to Fig. 58, I (if-another niodifiedefomn; iF ge 1 1 as -:a1'1 end of the. developing afluid.vnecessary-tocover I front walls of the "box; are: extended-at .5 to receive the spool: or, filmholder 6, which is of .usua-l construction andas} commercially suppliedhascopeningsjiin each-.end of its spindlenvhj ch areceive af-fixed post pro 'ecting from a :shoulderi? attached .to :onesi e wall of the box, and :a yielding post attached ton flanged sleeve -8.and mounted aipon a stud ,9 projecting fromis'houldcr :10 attached to the other-and right-side walh Aqsoring..10.* coilednbont.stud9 presses t-he \;i clding post outward. 1 i-ia' '1 w a,

The. film-carrier; 4, ,as; illustrated in l igs, 1 to 7 ,compr ises;itwo disks;L1;- and :12, situated respectively adjacentzto; the .r ightpand left-hand side, walls ;of' the box. :These have the 583.1116 elements, but are not interchangeable ;bytreason of tl ierelative location of; the -.stops1and receiving. g'pins, which are reversed :in' iposition .:as the am disks face each-other. Taking disk-12,.for purposesof explanation, litwis, fongpurposesnof assemibling, madeiin 'two parts in the form of semi-circular .plates 13, 14, eachof whichhas centrally-disposed ion itsrlnner stralght edge,

cars 15, -16, which overlap as-sem .im dotted lines in Fig.- Ty-MR1 arecach reduced, in thickness one-half (Fig.5); Aspace is left bet ween these plates and r they .are perforated to permit free passage :of the fiuidsemloyed. 1 .1

' Fixed to thein'ner face of .thedisk 12,.is aseries of 'circularqconcentric guides 17,

-which .have peripheral beveled retaining faces 18. ll pon such guidesaremounted so as to turn freely thereon, the circular oucentric reels 19, provided on then-inner sides with grooves flO, adapted to receive the retaining faces'18, and ,1thcrehy to hold the. reels in place to permit thenrto'turn thereon. Projecting sidewise-ffrom the reels are the tihn' supports. in thiszcasewinding pins '21,

i which receive and iholdrt he film. -Thc pcriphery'. of terminates aprojeetthe outermost reel 19. Theinnermost' reel 19 is not supported as are the others, but is equipped with an inwardly-extending radial flange .23, (Fig. 5) which enga shoulder 24 of a'washer 25, an said reel to turn freely.

A washer 26 is provided, which is situated externally of :the disk 12,- andissecured, to theears"15, 16, and -to washer 25 by screws 27, threaded into the said partsf This outer washer is -fixed 'toan inwardly-extending permits the tubular socket "28, which passes through same and alsoprojects outside :of disk v14, forming a trunnion '29,- which guides the film-carrier4 between ribs 3O, 31 (Fig. 2), on the sidewall to aseat where the said ribs areioinedat'their lower=ends.' A hollow film sleeve"32 receives the tubular sockets 28 attached to' each disk and is'provided'with interior," centrally-disposed 1 stops 33, 34', which limit the inward passagegof said tubular sockets. This'sleeve 32is also provided with 'a hook 35, which isadapted to hook into the end-of the film-carrying paper;- "The'stop-34 (Fig.3), projects'inwardly farther than the, other sto and .-'furnishes the: mediumfby which motion is communicated-frorn' the shaft 36,;of crank 'arm' 37, to

sleeve '32,*by" enteringa groove 3'8 insaid shaft, thereby providing a spline and groove connection between said parts. Shaft 36 passes through '0 ening' in bearing-block 80 and" a" correspon ing opening :inthe righthand side walhof the tank and isseatedun a pocket 81 in the left-him'd side wall-of the tank. A rotary" motion 'is "communicated 'from'*thehooking sleeve; 32,*after ithas made one revolution, to the first or --'-innermost reel by means of a post- 39 which projects radially outward from the end of said sleeve near'disk'12': in'the path of a -counterpostjor stop 40 projecting radially inward from said-reel; Inits startin position, or

position-of rest afterthe filmhas been hooked on the saidreels, it shouldbe in the position of Fig. 3, and after. two revolutions have been made,- in .the position of Fig.- 4. The succeeding reels are equipped with corresponding, outwardly, radially-projecting posts 41 and similar inwardly-prqecting posts 40, and as'each reel makes a complete revolution it will pick up its immediately-surrounding reel; that is, the 1 outwardly-extending pin 41 upon the periphery of each reel will en age the inwardly-extending. pin 40 upon t e interior surface of the surrounding reel and carry said surrounding reel along. In-Fig. =4- it will be observed that the second reel has just been picked up.

In Figsfl and 2 isillustrated a film-guiding shelf 42, which at-its frontis provided on each side with hooks 43, which engage the disk and extending over es, underthe 7 over'posts .44, 45, projecting inwardly from the side walls in such manner as to permit the ready removal of the said shelf and to permit it's frontend to swing freely. The shelf is formed in somewhat rectangular shape in longitudinal section, as seen 111 Fig. 2, and its free end 46 provides the means by which the filmis guided to the winding pins 21. Th'e'filmis held to said shelf by the upwardly and inwardly-extending edges 47, 48, of theshelf. g

The winding pins on each reel, from the inner to the outer reels, are situated ,at slightly-increasing distances apart, and the pins in two radial lines at the, front are. at greater distances apart than the other pins, whereby, when:in starting; position as in Fig. 2, the pins lyingunder the free end of the shelf and those above it form a path for the shelf, This. permits the said free end to'pass between said .pins and to guide the film, which is illustrated in Fig.4, and there designatedf49, untilit is. caught by the pins. '1he swinging movement of the shelf at its free end 46,]per'mits it to be lifted by the winding pins of=each succeeding reel as said reel is picked up by the stops and caused to rotate, thereby delivering the film in proper position to be taken off and held by thepins of the outerrotating reel, and the path between the said two lines of pins is 'wide enough to permit-the shelf freely to clear the pins as it swings, As each reelis picked up, its pin lying immediately under the shelf will lift it ,and'it will be held lifted bythe succeeding pins. The toe of the shelf will then move; rearwardly a trifle, approaching more nearly a horizontal position and permitting a slight movement in the same direction of the adjoining anchored reels to accommodate the new position of the shelf until, when the shelf emerges from the last reel, it will be in nearly a horizontal position. The reels outside of the one last picked up by the stops will remain quiet save for the slight movement to accommodate the change in angle of the shelf, being held against accidental displacement by the shelf.

Mounted upon the posts 44, 45 (Fig. 1), so as to swing freely, are stop arms 50, whichat their free ends terminate in stops 51, which fall into the space between plates 13, 14 (Fig. 7), and 110 d the disks 11, 12 against rotation in either direction. The said stop arms have a slight sidewise spring movement and are held in closed position v v serrated-lugs 52 fixed to the inner side walls of the tank (Fig. 6), which enter corresponding recesses 53 in the side of said arnisand permit the said stop 51 to have a radial adjustment.

Upon the periphery of the outer reel is a shoulder 54, the face of which is radial to the axis of rotation of the said reel and which cooperates with stop 51, which prosta e iects laterally across the. face of said reel. The inclinedback sgof the shoulders are present-ed to the" stops when the film is being wonndilpon tiled-eels, permitting the revoluti n o h t id."s mmering-' "Th said shoulder cooperateswithigthe stop in holding the outer reel against rotation when the '-i being rotated in the reverse direction to ut itin position for rec ivia e 'fites lt l s i i the y .l rm'i s' @111 the reels again to assume the position of F 2- "lilie. -ope1"a tio1i of this form of my device is as", follows Assuming tl 'e' film-carrier to be inlth'e position Fig; hand disk viewed from trated, and thespoohfi to be loadedwith a til m. The free endof the'fihn is brought through, .the shelf under the overhanging edge s l eti,i48,,andfhooked on the finger ,The cover '2 is "then onthe box .a'pdthe crank "handle 31 turned clockwise (F 1 g.

1), thereby fcausingvtlie sleeve .32 to move .in. .the."sa1 ne direction througl i, spline and grqovedtht, 38. flhe' disksifll', 12, are held tati ei 1ary by stops'51 entering'the space he- I tween plates '13, 14, 'aiid byithe' shelf resting will pick hippest; 4t) oni thejinnermost The pins ly ng immediately finder the toe of the shelf'will pilsh'it upward and'it will then 351 bylt h e'. ,p'ins of. Said innennost reel. Upon ii extset of pins '41, 40, will cause thisfeperationto be re- ...peatedforthetnext; 'ad]'o ining reel, and so the second-revolution th on unt-il thej filr'njhas been conjipletely transferred to thepins, where it is so held that the .succe edinglayers of negatives do not toi lclrea'ch other. The developing solution may then be' pourd in the ,tank, for which purpose the cover-mayberaisedand moved slightly lengthwise. After. the negatives are developed, water to rinse them may be placed in the. tank, followed by the likingsolution,

when they may again be rinsed. Iheibacking and film may then be removed from the tilm-carrier by sliding theshaft 36 entirely out and lifting the "film-carrier bodily from the tank and standing iton end, then removing the upper disk by simply lifting abs. its attached socket 28 readily Sliding out .of sleeve 32; then lift-ingout sleeve 32,

and the entire film will be'supp orted upon the pins of the opposite disk. It may then be removed from the paper backing for dryingras usual. It will be Observed that during the entire operation the film has not been touched by the hand nor by anything which might-injure it, and this I regard as an important advant-age,-of 'my invent-ion. The film-carrier and sleeve m'ay then be herein the let'tthet'ront is illus again assembled, placed in the tank. the shaft 3t't' reinscrted in such position as to cause spline 3-1; to enter groove 38. and the film-carrierplacedjin properposition to receive-a newtilm byengaging steps 51 in the space bet-ween'di'sks 13, 14, in its innermost position.sothatit is in the path of shoulder thereby 'fholdi-ng the=outer reel againstbackward movement, vh'en by tln'ningthe handle in the reverse way the reels. which will all .then be in the. positionpf the two inner indicated'iiiFig; .2, It will bepbserved that the stops 51 have two positions--anouterone in which they hold only the disks, and an inner one in which they hold the'disks and alsoengage shoulders This adjustment is useful in settingfthe reels to position toreeeive atilm. lSy' sinnjly lowering the stops'and turning the" hzin'dle the '1eve1-.-;@ \\=n v-.' the' stops-wilt automatically drop in between disks 13, H, and then being pushed down. on a continuation'of the turning-they will cngage'shoulders'54. Y

reels, (Figl ni wiltbe turned to theposition I ino'dificdiormof Figs. 8 and 9,

. .1 the. 't'l 1'c,'til'm1s ."upported on flanges (20, carried "bV' reels (t 1i" having beveled inner faces "wliiclrt'alce behind lugs (32 having'a counter bevel on'thcir contacting faces." The lugsii! project inwardly from spiders (i3, to whioh they are attached. T he reelsare concentric and are held in position b v'"th'e lugs on the spiders, which permit ;them to revolve freely, The flanges extend around a large partot 'the reels, but have a portion cut away 'at (34, forming "a path for the shelf.

. The construction of the hubs of the flangethe posts,}the sockets, sleeve. shaft, shelf, stops, .etc., is the same as in the previous iori'rr." The "chief difference here is in the substitution at flanges for pins, which produces a construction probably cheaper and more et'tieieut to hold the film.

In Figs. 10. 11, a spider ($3 is employed having similar beveled-faced lugs (32. which holdand guide'reels 70 having radial inwardly-ektending continuous flanges 71. These flanges have their inner faces beveled 'to take behihd the beveled faces of the lugs. but one spider is designed to be used. although two might be, and it has attached to it 'film receiving' and carrying pins 72, whiclrha've a length equal to the width of the'fihn. The arms of the spider may be braced, if desired. as by stays 73.

my invention to develop,

for each. .the smallest support and means for picking. apan adjoining support: at eachrevolution etc'., two films simultaneously ifdesire Space may be secured foiraeglditional: spool carrier in numerous ways-as' by increasing the height of. the box or its lengthandwhen two films are so developed 1 they should .be. woundin back to hack. ,I have employed with good results-brass as the material from which to make saidtank, and-this I have found. to

answer very well in use, as it soon becomes 1 silver-plated from the deposit of the silver in the fixing solution. Care should be taken entirely .to wash-out the hyposulfite of soda solutionbefore developing fresh films.

Numerous changes an the structure illustrated will readily suggest themselves within the range of my invention, some. of .which I. have illustrated,

and I, 'do-.not; desire to be understood as limiting myself to; the precise. structure or structures described. lVhatI'claim is:: 1

1. In. a developing tank, 'a series of annular, rotatable film supports of progressivelyincreasing diameters, independent bearings fihn support, means for-revolving of such-revolving support or supports.

rentric, rotatable.

. support. or supports.

- 3. In .adevelo ing. concentric, .rotata le annular film ,supports- 2.,Ina a developing tank, a series ofconbearings =for; each film support, the said bearings being. concentric, means. for revolving theinner support and; means forpickin" u the .immediatel surroundin su port at each revolut-i( m, of such revolving tank, a plurality of of the same.width-independent bearings for each support, means for revolving the inner support and means-for successively revolving additional supports.v v

In a developing tank, a series of. con centric, rotatable film supports, means for revolving the .inner support and for successively revolving surrounding supports, and means fonholding the nonrevolving supports against movement, and out of contact with the film. I

5. In a developin tank, ,a series of concentric, rotatable lm supports, separate hearings for eachfilm support, the said bearings being concentric and means for revolving each film support a limiteddistance free of its surroundingsupport, and means for picking up the surrounding support after such free movement.

6. In a developing'tank, a. series of concentric, rotatable film supports, each film support having spaces alined with each. other forming a film path, ;independent, concentric bearings for each film support,

andposts 011 each support adapted to 'en-' carrying a central revoluble film-attaching gage its adjoining supports.

film supports, separate rounding. support, means for picking up the modifications in.

surrounding support after such free movement, and means for permitting the film carrier and filmto be together removed from the tank. v

'9; In a developing tank, a film-carrier having means for attaching afilm thereto, and; a series of concentric reels, film supports on eaclrreel spaces in each film sup- ;port forminga film ath, and connections between adjacent ree s for revolving each 'reel a limited distance free ofjits surrounding reel, and means for picking upthe surrounding reel aiter suchfree movemcnt,'substantially asdescribed'.

. 10. In. a developing tank, a film carrier having means for. attaching a filmthere'to, and aseries of concentric annular reels, separate bearings for each of saidireelsQfilm supports on each reel, each of said. supports and connections between said reels whereby each reel, after completing a revolution, picks up and carries its surrounding reel, substantially as described. 11 In a developing tank, a film-carrier comprising a series of rotatable film supports, each film support having spaces forming a film path, stops on each support, the stops on adjacent sides of adjoining supports being adapted to engage each other, and means permitting the film carrier and film to be together removed from thetank. 12. In a developing tank',.a separable filmcarrier comprising a series of concentric, rotatable film supports and means for revolving-each film support a limited distance free of its surrounding support, means for picking up the surrounding support after such free movement, and means permitting the film-carrier and film to be together removed from the tank. 13. In a developing tank, a separable film carrier comprising a series of rotatable film supports, each film support having a space forming a film path and stops on each support adapted to engage the stops on adjoining supports, and means for permitting the film-carrier and film to be together removed fromjtlie tank.

ll. In. a developing tank, a film-carrier having a space therein forming a film path,

uessesf mois uriser is: engr'ialoeeuelmsreappoint:s as supports, separate, concentric-bearings Pier-s having a space to form a 1m path, posts on eaeh film support,- and means fomrevolvingzjeachvsuppcrtaadapteditoaengage*its admineach of said su ports a limited distanceifr'ee in'g'supports;andrwgunovable-rguide enteringof its surroun ing=support;i'andigmean's for sa1d-pathr iandaraldaptediisuccessivelyito :de-. 6-

picking upgthe surroundingsupport after: liverfilntato eachc movlingi'support in suchfree rnovement w; =.;'=;l;-;.:., i 22. .:Ina-a;develop ngqtank a.; seriesiotane .-In=a-:developing tank; sep'ar'able filmnulara:rotatableilfilmiisupports (each support-- carrier-oomprising -a central, revo1uble filmhaving; as spaceito'gformeasfilmi path,ineans attaching'sleeve, a seriesOf-cOnceiltriq,irotai Y forerotatingg-theiiinnercsupport,: and means picking upsaid surrounding support- -aftenportn-ww-rwn table' filmsupports, meansfiorfurevolving; fin;si'lccessivelyr-rotating the.adjoining supeach of said supportsa' limiteddistancefree ports, and?*aw n1ovable,,*gu1de;adaptedsucces. of its-surroundingsupport andemeans {017v s1Vely:, toidel1ver..film:-,=to=;eachz n1ov1ng:sup?

. :31 a nt-: such 'free movement, and means permitting 23: In adevelopingtank a removable and 7 moved from thetank.

thefilm carrier and film to be together re separable" film-carrier, comprising-.11; series I g :1 of rotatable ifilmsupports each support hav-- "16. In a developing tankg a filin carrier ingla space'toform afilm path, posts oneach comprising'wcentral,revoluble film-attach support'vada ted? to/engageavthewadjoining' ing sleeve, a series of concentric, rotatable support, an asmovablesshelf 'adapted.-to.

' film-supportsof the'-:same*wi dth,-' searate; enterrsaid'i filmzl' pathrgandi successively ,to

bearingsforeachsup "rtiandmeans orre-. deliver -filimtd-thexouterrrotating ifilm sup-' ports free ofits surrounding-support.

volving said sleeve"- ree' off the innermost portn supportandfor'revolvingjeachiofsaid sup- 24.1Inhidevelopingtank,azremovable and I it separable:filrn-carrier:comprising-a series=of -9 17. In'a developing tank;-airemowable and" concentric rotatable filmgsupportseachzsup-' separable'film-carrier comprising a: film=at pbrtihavingaa space ato tform-anfilm-cpath, aft. taching -sleeve,"revolubleside reel supports," 'film-receivingts eevepy means'sfor revolving reels supported thereon to revolve independx said isle'eve' andiin'nermo'ste support andvfor -ently-thereof, film suppo rts -on' saidi reels revolving a'n additional support-ateachrevo- 9 5 each supporthaving aa= space to form'a' filmlution,'=a movable Lfilm-guide-a'da ted to enter. path; and: posts adapted to' :engage each: saidifilmqpatheand.itoasdeliver mtoleachother-attached to sa1d'-sleeve,'-:and1-tothe supportlatzits firstz'revolution i 5 outer and inner-surfaces of said reelsu-m 1 -25; Inna developingltank, 2a-filIn-carrier '18. In a developing talnkyaremovable andhaving means iorfiattachin-gzmfilm thereto, i separablefilm-carrier, comprisingia film-at "andia-seriesoficoncentricfilni supports-eachtaching 9 sleeve, revoluble side zreel supports, support: having-a spaceito forma' s-film path,- reels heldthereon and adaptedctoirevolve cooperating-posts-attachedgto adjoiningtfilm independentlythereof-,filmsupports fiXed'to' supports revolvingoeachsupp'ortiai-limited' said reels andi 'eachsupportshaving a--space 'distancewfree of itssurrou'ndmgsupport, and

to for1n a"film-path,'=.and-cooperatingengagw mmovable shelfi.entering saids ath and= sucing posts onisaid sleeveand saidueels, andcessively deliveringlfilm-ztowa joiningsupa stop adapted-to engage said reel-supports'l: ports, substantiallysasdescribed. -r

19, Ina developing tank,.a :*removable=and 26;;I' f -d l i g'it k j ie -of,conseparable fihn-carner-compr-wmgmfilm fltcentricgrotatable film supportseach support taching sleeve, revolubleside reel supports, h'alvi g aispa 'e todform wifilm path, means reels supported thereon andadapted'tmre for revolving-each film :support a'limited' volve independently thereof, zfilm supports di t n f ofex itsvsurroundingi supportson said feel each support having a pac after such free mo'vement,:means 'f0I:P1C.lI-

to form a film' path, and'posts-attachedv-to ingziip the surrounding supportsafter-each said sleeveand to the outer-and -.inner'sur-- free movement, and'aj. removable guide pivfaces of said reels, and a stop ada ted whenv t lly'su ortedqon the tanlpada tedio .en-

adjusted to position to engage'sal reel; supv tersaid path andsuccessivelyto eliver film ports, and adjustable also 't02 engage the. toithe supports,and'movable-eoutwardly as outermost reel to stop rotation thereof in the-su ports-are loaded, substantially as deone direction. z 1' 20. In a developing tank,.,a series of con- 27. In a developing tank, a film-carrier centric, rotatable film supports, means for having meansvfou-attaching' a'film thereto, revolving each film-support a limited disand a series of '1 concentric annular reels, tance 'free of its surrounding sup ort, and bearings therefor, film supports on each means for pickingup said surroun ing supreel each su port havin a space to form a port after such free movement, and a movfilm atht rough; sai supports, connecable guide adapted. successively to deliver ations etween saidreels whereby each reel, film to each moving support. after completin a revolution, picks and car- 21. In a developing tank, a series of conries its lmme iately-surrounding reel,- a

adaptedsuccessively to deliver film to each for successively picking-up the surrounding supports, a movable guide adapted 'to-enter:

said film-path successively to deliver.- film centric rotatable filmsupports each of said supports-having aspace to-form a film path; each support having a limited movement freezofits outer supports,*means=for revolving. the inner support and -forsuccessively revolving-surroundingsupports, anda movable film-fguidemda ted to= enter saidfilm path successively .to eliver film to each sup- --..:port, substantially as described. 1 v- 30.:In a developing itank, a removable and separable film-carrier, a film-attaching! sleeve, revoluble side reel supports, reels.

held.thereon to' revolve independentlyv thereof, film supports fixed .to saidreels each of 'i 2 port .zha'ving ia; spaceito form a film tpa'th,

said supports having a space and the said spacesabeing al1ned,-5thereby forming a film path; cooperating engaging posts on: said sleeve and saidreels; "and a 1 movable film :guide-detachablymounted in said'tank and adapted successively to :deliver: film to ,said

film supports, substantially as :described. r

31. In a developing tank a plui'ality of" concentridrotatable-film supports eachsupm'eans forv grevolving :the inner support .-and

' for: successively 'revolving additional; isuptachab e film-guide adapted to-entersaid' ports, :andia} film guide adapted successively to deliver-film: to each support.-

32. ln a developing tank, aplu'rality ofi rotatable, vconcentric 'lfilm supports each :supav port'havingiwspace to formva film path, a central film-receiving sleeve, means for revolving smd-sleevcand for successively repathand successively: to deliver filmflto said sleevenandptosaidzsupportsg i 33..In 'a developing tank, a plurality of I rotatable concentric reels, hOIlZOIltfll film supports, projecting sidewise from said-reels each sup ortihaving aspace to form a film pathyra ial posts .upon the peripheral-and lnterior faces of said reels in. the same path-,:

and. a .film-guideadapted to enter said path and deliver film to each of said film supports;

34; In developing t tanic, a pair iofrev-z oluble disks, a plurality of rotatable concentricreels held upon said disks and=rotating'independently thereof, su porting'pinsprojecting-"sidewlse fromsai reels,'-a pin upon each reel being located. so that-:when' the reels are in starting position, said pins shall =-lie in'substantially av radial line. form- V i i a ing'a film =.path,-and,posts .uponthe periph-.

28.:In a:develo ingtank, aseries of con-- centrierotatable 1m supports each support; shaving!a'ispacezto form a film path, means for revolving-theinner support and means eraliand interior faces? ofsaidqreels in line with:-each otherrwnfi sockets, a surrounding hooking-.sleeve,-,a shaft within saidsockets and sleeve, aisplmed connection -:between said sleeve 1 and- -sliaft,-. a

plurality. ofq- :rotatable --concentric reels.

35. Ina developin rev loluble disks, inwar.dly-extending'g tubular.

mounted; upon'wthe. inside, of -said disks so as to revolver-freely ithereon, film-supporting pins projecting o-sidewise from said reels, apin upon each areelwbeingr located,so ;thati pins shallylie in substantially, a-radial'line forming a film path, posts'upon the iperiph when the reels. are in starting -position,:.said

eral and interior faces, of said reels in the same vertical plane, .afilm-guide, adapted -toenter-said path and .detachably mounted 36. .I11. axlevelo'pingtank,

centric reels-,film supports proje'ctingt'rom each: reel; toward il'tS' opposite reel Ta sufficient distance to receive the edge of tl1er film,-;and

means for successively connecting each a reel with its'surrounding-reek: v

means for successivelyponnecting each reel with its surrounding reel, and means ,=forholding oppositely-disposed reels against accidental rotation-.'-

3S. :ln adeveloping.tank,.two unconnected series ot oppositely disposed rotatable con.-

'85 uponthe walls and supports for a;sp ool in position to .deliver .film to. said guide. 1 two unconnected series of oppositely; disposed rotatable concentric reels,=film'-- supports proj ectingfrom each reel toward its opposite met a sufiicient distance to recelve-the edgeuof the film, meansforsuccesswely connecting each .reel

with its surroundingreel, said film supportsprovided --w'itl1 spaces alined to form .afilm ,pathyand a film guide insaid path adapted to deliver film to-the' outer revolving supports.

39. Ina developing tank, two unconnected series of oppositely disposed rotatable concentric reels,-film supports projecting from each reel toward its opposite reel a 'suflicient distance .to receive theedge of the film,

means for successively connecting each reel with its surrounding reel, said film supports provided, with spaces alinedto form a film path, and a filmguide in said path adapted to deliver film to the outer revolving supportsand means for holding idle supports against accidental rotation.-

40-. In a developing tank, two unconnected series of oppositely disposedrotatable con-- centric reels, film supports projecting from each rceltoward its opposite reel a sutticient.

distance to receive the edge. of the film, all of said film supports being of thcsame width, and means for successively connecting each reel with its surrounding reel. i1. lua developing tank, twoiuiconnected series of rotatable concentric reels, both said series of reels being removable from the tank and being separable one from the other, film supports projecting from each reel a sutlicient distance to receive the edge of the film, and incans for successivelyconnecting each reel with its surrounding reel. 42. In a developii'ig tank, two unconnected series of rotatable concentric reel's, both said series of. reels being removable from the tank and being separable one from the other, h'hn supports projecting from each reel a suilicicut distanceto re .-ei\-'c th e. edge of the film. means tor successively connecting each reel with its surromiding reel, and means forholding tippositely-disposed reels against accidentalrotation.

43.. In a developing tank, two unconnected series at rotatable concentric reels. both said series of reels being removable from the tank -and being separable one from the other, film supports projecting from each reel a suitieient. distance to receive the edge or the film,

means for successively connecting each reel with its surrounding reel, said film supports provided'ivith spaces alined to form a film path, and a film guide in said path adapted to deliveartihn supports.

44'. In av developing tank, two unconnected series of oppositely disposed rotata- -ble concentric reels; bothsaid series of reels being removable from the tank and being separable one from the other, film supports projecting fromeach reel toward its opposite reel :a sufficient distance to receive thefilm guide in said path adapted to deliver to the outer. pair of revolving each reel with its surrounding reel,

accidental rotation.

iii. In a developing tank, two unconnected series of rotatable concentric reels,

both said series of reels being removable from the tank and being separable one from the other, fihn supports projecting from each reel a sufficient distance to receive the.-

edge of the film, all of said film supports .being of the same width, "and means for successively connecting each reel with its .ing additlona-l'supports, and an adjustable stop adapted to engage said supports and hold the same against movement and to suecessively release theisupports for loading.

48.-Ina developing tank, a plurality ot" concentric rotatable film supports arranged to form a film path, means for revolving the inner support and for successively revolving additional supports, and an adj ustable stop adapted to engage said supports andhold the same against movement and successivel release the sup orts for loading, and an adiiistable stop a apted to engage the outer sup ort when the. supports are being revolve in the reverse direction and hold the same againstrevolution.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

' AnoLrrrR'DmsE,

HENRm'rTA E. VVORKMA'N. 

